155252004 has 12 divisors (see below), whose sum is σ = 362254704. Its totient is φ = 51750664.

The previous prime is 155251997. The next prime is 155252023. The reversal of 155252004 is 400252551.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6468822 + ... + 6468845.

It is an arithmetic number, because the mean of its divisors is an integer number (30187892).

Almost surely, 2^155252004 is an apocalyptic number.

It is an amenable number.

155252004 is an abundant number, since it is smaller than the sum of its proper divisors (207002700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155252004 is a wasteful number, since it uses less digits than its factorization.

155252004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12937674 (or 12937672 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 155252004 is about 12460.0162118675. The cubic root of 155252004 is about 537.4594931796.

The spelling of 155252004 in words is "one hundred fifty-five million, two hundred fifty-two thousand, four".